She thanked first responders and said crews and investigators worked through the night and will continue to work to learn what happened.Start the day smarter. Get all the news you need in your inbox each morning.

However, a Saturday morning update from the Philadelphia mayor's office confirmed that all six people aboard the plane had died. The statement noted that many people on the ground "in parking lots, on streets, in cars and homes in the area" were injured, but the number of injured people "is yet to be released."